EP2831446B1 - Frein à disque de véhicule à moteur et garniture de frein associée - Google Patents

Frein à disque de véhicule à moteur et garniture de frein associée Download PDF

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Publication number
EP2831446B1
EP2831446B1 EP13711390.8A EP13711390A EP2831446B1 EP 2831446 B1 EP2831446 B1 EP 2831446B1 EP 13711390 A EP13711390 A EP 13711390A EP 2831446 B1 EP2831446 B1 EP 2831446B1
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EP
European Patent Office
Prior art keywords
brake
brake pad
parts
disc
pad
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13711390.8A
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German (de)
English (en)
Other versions
EP2831446A1 (fr
Inventor
Matthias Klingner
José CAMILO-MARTINEZ
Christian STAAHL
Bernhard Miller
Robert Trimpe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
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Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP2831446A1 publication Critical patent/EP2831446A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0008—Brake supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0016—Brake calipers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/026—Braking members; Mounting thereof characterised by a particular outline shape of the braking member, e.g. footprint of friction lining
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly
    • F16D2250/0084—Assembly or disassembly

Definitions

  • the present invention relates to a disc brake of a motor vehicle according to the preamble of claim 1 and a brake pad according to the preamble of claim 8.
  • Generic disc brakes of a motor vehicle for example in the form of sliding caliper disc brakes for commercial vehicles are known in numerous variants of the prior art.
  • the size of the friction surface of the brake pad is always in the foreground in order to achieve the smallest possible surface pressure and second to the lowest possible wear.
  • the lining shaft in which the brake pads are inserted, In order to maximize the surface area, viewed in the plane of the friction surface of the brake disk, the shape of a rectangle. In addition, the size and the rectangular shape of the brake pads prevent unscrewing the brake pads from the lining shaft due to the forces acting on the pads from the brake disc transverse forces.
  • the size of the brake pads is determined radially by the inner and outer diameter of the brake disc.
  • the width of the brake pad is determined by the width of the caliper frame. Increasing the width of the caliper frame results in an increase in weight and a decrease in the stiffness of the caliper. A reduced stiffness of the brake is accompanied by an increased stroke consumption, so that brake pads can not be made arbitrarily wide for this reason.
  • the width of the brake pads in the tangential direction is therefore limited by the existing stroke, their weight and by the adjacent vehicle components such as rim, Achsflansch or wheel bearings.
  • Object of the present invention is to provide a disc brake of a motor vehicle and a brake pad for such a disc brake with a further increased Reibbelag characteristics without the disadvantages mentioned above.
  • the width of the radially outer to the axis of rotation of the brake disc outer region of the brake pad tangent to the brake disc is greater than the width of a lining shaft opening of the lining shaft tangential to the brake disc, wherein the brake pad of the disc brake is formed of a plurality of brake pad parts composable to a brake pad.
  • the brake lining of the disc brake is divided into two parts into an inlet-side brake pad part and an outlet-side brake pad part, the contact surface of the inlet-side brake pad part is formed to the outlet side brake pad part in a plane considered to the friction surface of the brake pad as a curve, wherein the contact surfaces are shaped such in that the two brake lining parts are pivotable relative to one another when installed in the lining shaft, wherein the curve of the contact surface of the inlet side brake lining part is convex or concave with a continuously changed radius of curvature, the curve of the contact surface of the outlet side brake lining part being correspondingly concave or convex.
  • brake pads can be switched on and swung over the lining shaft opening, which are wider in composite form than the width of the lining shaft opening, without having to disassemble the caliper.
  • an enlargement of the brake lining surface is achieved in the tangential direction of the brake pads, whereby the friction radius is further increased.
  • the brake pad parts are in the assembled state by a fixing element to each other fixed.
  • each of the brake lining parts has a recess which, in the contiguous state of the brake lining parts, forms a mutually adjoining common recess into which the fixing element correspondingly shaped fixing element can be inserted, so that when the fixing element is inserted into the recesses in a pivoting movement of the brake lining parts is prevented relative to each other.
  • the brake lining parts can be inserted through the covering shaft opening into the covering shaft and, after pivoting into the functional position, can be effortlessly fixed in their functional position by means of the fixing element inserted into the recesses.
  • each of the brake lining parts has a recess which, in the assembled state of the brake lining parts, can be inserted on a fixing element facing the brake lining parts and aligned parallel to the friction surface of the brake lining, designed as a bolt, so that when the fixing element is inserted in each case in the recesses a pivoting movement of the brake lining parts is prevented relative to each other.
  • top, bottom, left, right, front, back, etc. refer exclusively to the example representation and position of the disc brake, the one selected in the respective figures Brake pads, the caliper and the like. These terms are not intended to be limiting, that is to say, by different working positions or the mirror-symmetrical design or the like, these references may change.
  • FIG. 1 a total of a first embodiment of a disc brake according to the invention of a motor vehicle, in particular a sliding caliper disc brake of a commercial vehicle.
  • the disc brake 1 in this case has a brake disc 2, which rotates together with the wheel of the motor vehicle about an axis of rotation A, when the motor vehicle is in motion. From, relative to the axis of rotation A, radially outside a caliper 4 engages over a portion of the brake disc. 2
  • the disc brake 1 preferably has a brake carrier 3 fixed on the vehicle side, which likewise engages over the brake disc 2 and which consists essentially of two carrier horns 31, 32 interconnected by a bridge 33.
  • the carrier horns 31, 32 and the bridge member 33 together form a lining shaft 8, in which preferably both sides of the brake disc 2 associated brake pads 5 can be positioned. Also conceivable is the attachment of the disc brake 1 directly on a vehicle axle.
  • the lining shaft is part of the vehicle-mounted stationary brake caliper.
  • a part of the caliper 4 viewed in the radial direction starting from the axis of rotation A of the brake disk 2, protrudes beyond the lining shaft 8, as in FIG FIG. 4 can be seen.
  • the interior of the lining shaft 8 is dimensioned such that the brake lining 5 can be inserted into the lining shaft 8 by a pivoting movement about a pivot axis parallel to the axis of rotation A of the brake disk 2.
  • the width of the radially to the axis of rotation A of the brake disc 2 outer region of the brake pad 5 tangential to the brake disc 2 is greater than the width of the lining shaft opening 81 of the lining shaft 8 tangentially to the brake disk 2 in order to achieve the largest possible friction radius.
  • the brake pad may be integrally formed according to a (not shown first) embodiment variant.
  • the distance d between a radially to the axis of rotation A of the brake disc 2 in the inner region of the brake lining 5 supporting the support surface of the brake carrier 3 and the lining shaft 8 inwardly spanning area of the caliper 4 is dimensioned such that the brake pad 5 about a to the axis of rotation A of Brake disc 2 parallel pivot axis is pivotable.
  • the brake pad consists of two composable to the brake pad brake lining parts 5a, 5b. It is also conceivable a composition of the brake pad 5 from more than two brake pad parts.
  • the brake pad 5 is formed in two parts in an inlet side brake lining part 5a and an outlet side brake pad part 5b formed that the Komtakt Colour the inlet side brake pad part 5a to the outlet side brake pad part 5b in a plane considered to the friction surface of the brake pad 5 level as a curve 10, wherein the Komtakt vom are shaped such that the two brake lining parts 5a, 5b in the interior of the lining shaft 8 in the installed state are mutually pivotable.
  • the curve 10 of the contact surface of the inlet-side brake lining part 5a is preferably formed convex with a continuously varying radius of curvature.
  • the curve of the contact surface of the outlet-side brake pad part 5b is concave with a continuously changing radius of curvature, in this case that the two brake pad parts 5a, 5b are completely joined together.
  • a concave curvature of the inlet-side brake pad part 5a and a correspondingly convex curvature of the outlet-side brake pad part 5b is also conceivable.
  • the two brake lining parts 5a, 5b are fixed together in the assembled state by a fixing element 55 with the two curved contact surfaces.
  • Fixing element 55 shown here consists of a tangentially to the brake disc 2 aligned beam which is inserted into a recess 53, 54 which is formed in the respective brake lining parts 5a, 5b, said recesses 53, 54 in the contiguous state of the brake lining parts 5a, 5b form a mutually overlapping common recess, so that when inserted fixing element 55 in the recess 53, 54, a pivoting movement of the brake lining parts 5a, 5b is prevented relative to each other.
  • Each of the brake lining parts 5a, 5b has a recess 56 which, in the assembled state of the brake lining parts 5a, 5b, is arranged as a bolt 57 on an inner side of the brake caliper 4 facing the brake lining parts 5a, 5b and aligned parallel to the friction surface of the brake lining 5 Fixing elements 55 are inserted, so that in each case introduced fixing element 55 in the recesses 56, a pivoting movement of the brake lining parts 5a, 5b is also effectively prevented relative to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Claims (11)

  1. Frein à disque d'un véhicule automobile, notamment frein à disque à étrier coulissant d'un véhicule utilitaire, comportant
    - un étrier (4) de frein, enjambant un disque (2) de frein
    - au moins une garniture (5) de frein, qui est pourvue d'une plaque (51) porte-garniture et d'une garniture de friction y étant fixée et qui est guidée dans un puits (8) de garniture formé par le porte-frein (3) ou par l'étrier (4) de frein,
    - dans lequel la garniture (5) de frein peut être introduite dans le puits (8) de garniture par une ouverture (81) de puits de garniture formée par l'étrier (4) de frein,
    caractérisé en ce que
    - la largeur de la partie extérieure, radialement par rapport à l'axe (A) de rotation du disque (2) de frein, de la garniture (5) de frein, est, tangentiellement au disque (2) de frein, plus grande que la largeur d'une ouverture (81) du puits (8) de garniture, tangentiellement au disque (2) de frein,
    - dans lequel l'espace intérieur du puits (8) de garniture est dimensionné de manière à pouvoir introduire la garniture (5) de frein dans le puits (8) de garniture par un déplacement de pivotement autour d'un axe de pivotement parallèle à l'axe (A) de rotation du disque (2) de frein et
    - dans lequel la garniture (5) de frein est constituée de plusieurs parties (5a, 5b) de garniture de frein pouvant être rassemblées en la garniture (5) de frein.
  2. Frein à disque suivant la revendication 1, caractérisé en ce que la garniture (5) de frein est constituée en étant subdivisée en deux parties, en une partie (5a) de garniture de frein du côté de l'entrée et en une partie (5b) de garniture de frein du côté de la sortie, la surface de contact de la partie (5a) de la garniture de frein du côté de l'entrée et la surface de contact de la partie (5b) de la garniture de frein du côté de la sortie étant constituées sous la forme d'une courbe (10) dans un plan considéré par rapport à la surface de friction de la garniture (5) de frein, les surfaces de contact étant conformées de manière à ce que les deux parties (5a, 5b) de la garniture de frein puissent pivoter l'une par rapport à l'autre dans l'état inséré dans le puits (8) de la garniture.
  3. Frein à disque suivant la revendication 2, caractérisé en ce que la courbe (10) de la surface de contact de la partie (5a) de la garniture de frein du côté de l'entrée est convexe ou concave, en ayant un rayon de courbure se modifiant constamment, la courbe (10) de surface de contact de la partie (5b) de la garniture de frein du côté de la sortie étant, d'une manière correspondante, concave ou convexe.
  4. Frein à disque suivant l'une des revendications 1 à 3, caractérisé en ce que les parties (5a, 5b) de la garniture de frein peuvent, à l'état rassemblé, être immobilisées l'une par rapport à l'autre par un élément (55, 57) d'immobilisation.
  5. Frein à disque suivant la revendication 4, caractérisé en ce que chacune des parties (5a, 5b) de la garniture de frein a un évidement (53, 54), qui, lorsque les parties (5a, 5b) de la garniture de frein sont à l'état l'une à côté de l'autre, forme un évidement commun passant de l'un à l'autre dans lequel l'élément (55) d'immobilisation formé de manière correspondante aux évidements (53, 54) peut être inséré, de manière à ce que, lorsque l'élément (55) d'immobilisation est inséré dans les évidements (53, 54), un mouvement de pivotement des parties (5a, 5b) de la garniture de frein, l'une par rapport à l'autre, soit empêché.
  6. Frein à disque suivant la revendication 5, caractérisé en ce que l'élément (55) d'immobilisation est constitué en étant de type à barre.
  7. Frein à disque suivant la revendication 4, caractérisé en ce que chacune des parties (5a, 5b) de la garniture de frein a un évidement (56) dans lequel, lorsque les parties (5a, 5b) de la garniture de frein sont à l'état rassemblé, un élément (55) d'immobilisation, conformé en axe (57), tourné vers l'une des parties (5a, 5b) de la garniture de frein et disposé du côté intérieur de l'étrier (4) de frein, dirigé parallèlement à la surface de friction de la garniture (5) de frein, peut être introduit de manière à empêcher, lorsque l'élément (55) d'immobilisation est inséré dans les évidements (56), un mouvement de pivotement des parties (5a, 5b) de la garniture de frein, l'une par rapport à l'autre.
  8. Garniture (5) de frein en plusieurs parties d'un frein à disque d'un véhicule automobile, notamment d'un frein à disque à étrier coulissant d'un véhicule utilitaire, comportant plusieurs parties (51a, 51b) de plaque de porte-garniture pouvant être rassemblées en une plaque (51) porte-garniture, dans laquelle il est fixé au moins une garniture de friction au moins sur l'une des parties (51a, 51b) de plaque de porte-garniture, les surfaces de contact de deux parties (5a, 5b) de garniture de frein, se trouvant l'une à côté de l'autre en position de fonctionnement, étant constituées sous la forme d'une courbe (10) dans un plan considéré par rapport à la surface de friction de la garniture (5) de frein, les surfaces de contact curvilignes étant formées de manière à ce que les deux parties (5a, 5b) de la garniture de frein puissent pivoter l'une par rapport à l'autre, caractérisée en ce que la courbe (10) de la surface de contact de la partie (5a) de la garniture de frein du côté de l'entrée est convexe ou concave, en ayant un rayon de courbure se modifiant constamment, la courbe (10) de surface de contact de la partie (5b) de la garniture de frein du côté de la sortie étant, d'une manière correspondante, concave ou convexe.
  9. Garniture (5) de frein suivant la revendication 8, caractérisée en ce que les parties (5a, 5b) de la garniture de frein peuvent, à l'état rassemblé, être immobilisées l'une par rapport à l'autre par un élément (55, 57) d'immobilisation.
  10. Garniture (5) de frein suivant la revendication 8, caractérisée en ce que chacune des parties (5a, 5b) de la garniture de frein a un évidement (53, 54), qui, lorsque les parties (5a, 5b) de la garniture de frein sont à l'état l'une à côté de l'autre, forme un évidement commun passant de l'un à l'autre dans lequel l'élément (55) d'immobilisation formé de manière correspondante aux évidements (53, 54) peut être inséré, de manière à empêcher, lorsque l'élément (55) d'immobilisation est inséré dans les évidements (53, 54), un mouvement de pivotement des parties (5a, 5b) de la garniture de frein, l'une par rapport à l'autre.
  11. Garniture (5) de frein suivant la revendication 9, caractérisée en ce que chacune des parties (5a, 5b) de la garniture de frein a un évidement (56) dans lequel, lorsque les parties (5a, 5b) de la garniture de frein sont à l'état monté, un élément (55) d'immobilisation peut être introduit, de manière à empêcher, lorsque l'élément (55) d'immobilisation est introduit dans les évidements (56), un mouvement de pivotement des parties (5a, 5b) de la garniture de frein, l'une par rapport à l'autre.
EP13711390.8A 2012-03-26 2013-03-22 Frein à disque de véhicule à moteur et garniture de frein associée Active EP2831446B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012006107A DE102012006107A1 (de) 2012-03-26 2012-03-26 Scheibenbremse eines Kraftfahrzeugs und Bremsbelag
PCT/EP2013/056022 WO2013143990A1 (fr) 2012-03-26 2013-03-22 Frein à disque de véhicule à moteur et garniture de frein associée

Publications (2)

Publication Number Publication Date
EP2831446A1 EP2831446A1 (fr) 2015-02-04
EP2831446B1 true EP2831446B1 (fr) 2017-11-01

Family

ID=47915238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13711390.8A Active EP2831446B1 (fr) 2012-03-26 2013-03-22 Frein à disque de véhicule à moteur et garniture de frein associée

Country Status (3)

Country Link
EP (1) EP2831446B1 (fr)
DE (1) DE102012006107A1 (fr)
WO (1) WO2013143990A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2570689B2 (fr) 2011-09-14 2021-09-22 KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH Frein à disque d'un véhicule automobile et garniture de frein
GB2627966A (en) * 2023-03-09 2024-09-11 Jost Werke Deutschland Gmbh Air disc brake pad assembly and method
CN117329244B (zh) * 2023-12-01 2024-02-02 山西强力矿用设备制造有限公司 液压湿式制动集成结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07332405A (ja) 1994-06-08 1995-12-22 Nissin Kogyo Kk 車両用ディスクブレーキ
EP1113184A1 (fr) 1999-12-30 2001-07-04 Freni Brembo S.p.A. Garniture articulée de frein à disque
JP2004332871A (ja) 2003-05-09 2004-11-25 Advics:Kk ディスクブレーキ用のパッド
US20090283372A1 (en) 2006-12-20 2009-11-19 Toyota Jidosha Kabushiki Kaisha Disc brake device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388775A (en) * 1966-10-21 1968-06-18 Gen Motors Corp Disc brake with pocketed quick change shoe assembly
GB9219298D0 (en) * 1992-09-11 1992-10-28 Automotive Products Plc A disc brake
DE4317286A1 (de) * 1993-05-25 1994-12-01 Teves Gmbh Alfred Schwimmrahmen-Scheibenbremse und Verfahren für die Montage eines Bremsbelags
JPH08219196A (ja) * 1995-02-14 1996-08-27 Nissan Motor Co Ltd ディスクブレーキ装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07332405A (ja) 1994-06-08 1995-12-22 Nissin Kogyo Kk 車両用ディスクブレーキ
EP1113184A1 (fr) 1999-12-30 2001-07-04 Freni Brembo S.p.A. Garniture articulée de frein à disque
JP2004332871A (ja) 2003-05-09 2004-11-25 Advics:Kk ディスクブレーキ用のパッド
US20090283372A1 (en) 2006-12-20 2009-11-19 Toyota Jidosha Kabushiki Kaisha Disc brake device

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Publication number Publication date
WO2013143990A1 (fr) 2013-10-03
DE102012006107A1 (de) 2013-09-26
EP2831446A1 (fr) 2015-02-04

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